Laser air cooling assembly

Abstract

The utility model relates to the technical field of lasers, and particularly discloses a laser air cooling assembly which comprises a vortex cooler, a cold end air outlet nozzle and a laser. An air outlet of the vortex cooler faces the laser; a cold end outlet of the vortex cooler is connected with an air outlet nozzle; the air outlet nozzle faces the laser, and the cross sectional area of the air outlet nozzle is gradually increased in the air outlet direction of the air pipe; the air outlet end of the air outlet nozzle covers the laser in the horizontal direction. According to the scheme, the vortex cooler can generate low-temperature cold airflow, and the cooling effect is better than that of an existing fan air cooling heat dissipation structure; the air outlet nozzle can cover the laser so as to supply air to the whole end face of the laser; compared with an existing fan air-cooling heat dissipation structure, the contact area between the air outlet and the laser can be increased, and therefore the heat dissipation efficiency is improved; compared with an existing water cooling structure, the overall structure can be simplified, the manufacturing cost is reduced, and the problem that an existing laser heat dissipation structure cannot give consideration to high heat dissipation efficiency and simple structure is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser, in particular to a laser air cooling assembly. BACKGROUND

[0002] Laser is a kind of photoelectric device capable of generating laser, which is widely used in industrial cutting, optical fiber communication and laser treatment fields. As a kind of photoelectric device, laser generates heat when emitting light, and heat accumulation will cause the working temperature of laser to rise and the performance to decline, so laser is generally configured with a heat dissipation structure.

[0003] The existing laser adopts heat dissipation modes mainly including fan air cooling heat dissipation, water cooling heat dissipation and the like. The water cooling heat dissipation structure uses water circulation to take away the heat of laser, and has high heat dissipation efficiency, but its structure is complex and the cost is high, and a large number of pipelines need to be arranged, so that the overall volume is large. The fan air cooling heat dissipation structure blows away the heat of laser through air pipe, but the heat dissipation efficiency of the existing fan air cooling heat dissipation structure is low. CONTENT OF THE INVENTION

[0004] Therefore, the purpose of the present application is to provide a laser air cooling assembly to solve the problem that the existing laser heat dissipation structure cannot balance high heat dissipation efficiency and simple structure.

[0005] To achieve the above technical purpose, the present application provides a laser air cooling assembly, comprising: a vortex cooler, a cold end air outlet nozzle and a laser;

[0006] The cold end outlet of the vortex cooler is connected with an air outlet nozzle;

[0007] The air outlet nozzle faces the laser, and the cross-sectional area of the air outlet nozzle gradually expands along the air outlet direction;

[0008] The air outlet end of the air outlet nozzle covers the laser along the horizontal direction.

[0009] Further, the top end and / or the bottom end of the laser is provided with a plurality of air ducts;

[0010] The plurality of air ducts penetrates the laser along the horizontal direction;

[0011] The air outlet end of the air outlet nozzle faces the air inlet end of the plurality of air ducts.

[0012] Further, the plurality of air ducts comprises a first air duct, a second air duct and a third air duct, and so on;

[0013] The first air duct, the second air duct and the third air duct, and so on, are arranged in turn along the middle part of the laser to the edge direction;

[0014] The first air duct gradually shrinks along the air inlet direction to the air outlet direction.

[0015] Further, the width of the first air duct is greater than the width of the second air duct.

[0016] The width of the first air duct is greater than the width of the third air duct.

[0017] Further, the second air duct is a parallel air duct.

[0018] The third air duct gradually expands along the air inlet direction to the air outlet direction.

[0019] Further, the cold end outlet of the vortex cooler is provided with a gradually expanding pipe gradually expanding along the outlet direction.

[0020] Further, the cold end outlet of the vortex cooler is connected to the air outlet nozzle through an elbow pipe.

[0021] As can be seen from the above technical solutions, the present application provides a laser air cooling assembly, comprising: a vortex cooler, a cold end air outlet nozzle, and a laser; the cold end outlet of the vortex cooler is connected to an air outlet nozzle; the air outlet nozzle faces the laser, and the cross-sectional area of the air outlet nozzle gradually expands along the air outlet direction of the air pipe; and the air outlet end of the air outlet nozzle covers the laser along the horizontal direction.

[0022] In the present scheme, the vortex cooler serves as a core refrigeration device, which can provide a lower temperature air cooling flow (the lowest cold air can reach-46℃), produce cold air quickly, and has excellent heat dissipation effect; at the same time, the vortex cooler does not need to be powered and does not need refrigerant, only needs to provide compressed gas, has low cost, and is maintenance-free; and the vortex cooler has a simple structure, does not need complex pipelines, and is small in size, which is conducive to the miniaturization of the laser.

[0023] In the present scheme, the air outlet nozzle can cover the laser, so as to realize air supply to the entire end surface of the laser; compared with the existing fan air cooling heat dissipation structure, the contact area of the air outlet and the laser can be increased, so as to improve the heat dissipation efficiency; compared with the existing water cooling structure, the overall structure can be simplified, the manufacturing cost can be reduced, and the problem that the existing laser heat dissipation structure cannot simultaneously have high heat dissipation efficiency and a simple structure is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0025] Figure 1 A structure schematic diagram of a laser air cooling assembly provided by the present application is shown.

[0026] Figure 2 A laser schematic diagram of a laser of a laser air cooling assembly provided by an embodiment of the present application;

[0027] Figure 3 A laser bottom view of a laser of a laser air cooling assembly provided by an embodiment of the present application;

[0028] Figure 4 A vortex cooler sectional view of a laser air cooling assembly provided by an embodiment of the present application;

[0029] Figure 5 A whole structure schematic diagram of a laser air cooling assembly provided by an embodiment of the present application;

[0030] In the figure: 10, straight pipe; 11, air outlet nozzle; 12, elbow pipe; 20, laser; 21, air duct; 211, first air duct; 212, second air duct; 213, third air duct; 22, baffle; 30, vortex cooler; 31, cold end outlet; 32, air inlet; 33, hot end outlet; 34, hot end adjusting valve; 36, vortex chamber. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application specification, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or replaceable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through intermediate medium, it can be internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] Please refer to Figure 1 In the embodiments of the present application, a laser air-cooled assembly is provided, comprising: a vortex cooler 30, an air outlet nozzle 11 and a laser 20.

[0035] The cold end outlet 31 of the vortex cooler 30 is connected with the air outlet nozzle 11; the air outlet nozzle 11 faces the laser 20, and the cross-sectional area of the air outlet nozzle 11 gradually expands along the air outlet direction; the air outlet end of the air outlet nozzle 11 covers the laser 20 along the horizontal direction. Wherein, the cold end outlet 31 can be connected with the air outlet nozzle 11 through the branch pipe 10.

[0036] In the present scheme, the area of the air outlet of the cold end outlet 31 can be effectively increased through the air outlet nozzle 11, so as to increase the cooling efficiency of the cold end outlet 31 to the laser 20. Moreover, in the present embodiment, the air outlet end of the air outlet nozzle 11 covers the laser 20 along the horizontal direction, which can simultaneously air-cool and dissipate heat on the entire end surface of the laser 20, and compared with the existing air outlet which can only dissipate heat locally, the heat dissipation efficiency can be further improved.

[0037] In actual application, the cold end outlet 31 can be connected with multiple air outlet nozzles 11, and the multiple air outlet nozzles 11 respectively face different end surfaces of the laser 20, so as to realize multi-surface simultaneous heat dissipation.

[0038] In a further improved embodiment, multiple air ducts 21 are arranged at the top end and / or the bottom end of the laser 20; the multiple air ducts 21 penetrate through the laser 20 along the horizontal direction; the air outlet end of the air outlet nozzle 11 faces the air inlet end of the multiple air ducts 21.

[0039] In the present embodiment, the air duct 21 can play a role of guiding the gas blown out by the air outlet nozzle 11, so as to ensure that the gas effectively passes through the surface of the laser 20.

[0040] It should be noted that the height of the laser 20 provided in the present embodiment is less than the length and width thereof, and therefore the top surface and the bottom surface of the laser 20 serve as the main heat dissipation surfaces of the laser 20.

[0041] In application, the number of the air ducts 21 can be set according to the needs.

[0042] In one embodiment provided in the present application, please refer to Figures 1 to 3The plurality of air ducts 21 includes a first air duct 211, a second air duct 212, and a third air duct 213. The first air duct 211, the second air duct 212, and the third air duct 213 are arranged in sequence along the middle part of the laser 20 to the edge direction. The first air duct 211 is tapered from the air inlet direction to the air outlet direction.

[0043] In applications, the first air duct 211, the second air duct 212, and the third air duct 213 can each include multiple, specifically, the first air duct 211 is located at the middle part of the laser 20, and the third air duct 213 is located at the edge of the laser 20.

[0044] The first air duct 211 tapered from the air inlet direction to the air outlet direction can increase the flow rate of the gas flowing through the first air duct 211, accelerate the heat dissipation speed of the middle area of the laser 20, and thus better cool the middle area of the laser 20, avoiding heat accumulation in the middle area of the laser 20.

[0045] In one embodiment, the width of the first air duct 211 is greater than the width of the second air duct 212, and the width of the first air duct 211 is greater than the width of the third air duct 213, which can ensure the air intake of the first air duct 211, and in combination with the tapered structure of the first air duct 211, better cooling effect can be achieved.

[0046] Further, the second air duct 212 is a parallel air duct, and the third air duct 213 is tapered from the air inlet direction to the air outlet direction.

[0047] Specifically, the first air duct 211, the second air duct 212, and the third air duct 213 can be separated by a baffle 22. In this embodiment, a plurality of baffles 22 can be arranged in the projection space of the laser 20 in the vertical direction, reducing the possibility of damage to the baffle 22.

[0048] At the same time, the structure of the first air duct 211, the second air duct 212, and the third air duct 213 helps to evenly dissipate the heat of the laser 20. The gas flow rate of the first air duct 211 with a wider middle width is faster, which can provide stronger cooling capacity for the middle core area of the laser 20. The gas flow rate of the second air duct 212 as a parallel air duct is lower than that of the first air duct 211. The gas flow rate of the third air duct 213 as a tapered air duct is lower than that of the second air duct 212. Therefore, the three air ducts in this scheme can make the gas flow more evenly on the surface of the laser 20, avoiding local overheating or overcooling. In some precise lasers 20, temperature non-uniformity can cause deformation or performance changes of optical elements, affecting the output quality of the laser. Therefore, the air-cooled heat dissipation structure in this embodiment can reduce such temperature non-uniformity and improve the stability and reliability of the laser.

[0049] In one embodiment, please refer to Figure 1 WithFigure 4 The vortex cooler 30 is provided with a vortex chamber 36; the vortex chamber 36 is connected with the cold end outlet 31 at a first end, connected with the hot end outlet 33 at a second end, and connected with the gas inlet 32 at a third end; the hot end outlet 33 is provided with a hot end regulating valve 34; and the gas inlet 32 is provided with a nozzle 35.

[0050] Optionally, the cold end outlet 31 of the vortex cooler 30 is provided with a gradually expanding pipe gradually expanding in the outlet direction.

[0051] When the gas flows out of the cold end outlet 31 of the vortex cooler 30, the gas gradually reduces in flow rate after passing through the gradually expanding pipe. The reduction in flow rate can also reduce the energy loss of the cold gas flow during transportation. By reducing the flow rate through the gradually expanding pipe, the cold gas flow can maintain more coldness during transportation, and the refrigeration efficiency of the vortex cooler 30 can be improved.

[0052] In one embodiment, please refer to Figure 5 The straight pipe 10 at the air outlet of the cold end outlet 31 can also be connected with the air outlet nozzle 11 through the elbow pipe 12, which is conducive to the compact arrangement of the vortex cooler 30 and the laser 20, and makes the overall structure miniaturized.

[0053] The above is the preferred embodiment of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements to some of the technical features, but any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A laser air-cooling assembly, characterized in that, The utility model relates to a laser cooling device, comprising: a vortex cooler (30), an air outlet nozzle (11) and a laser (20); the cold end outlet (31) of the vortex cooler (30) is connected with the air outlet nozzle (11); the air outlet nozzle (11) is directed towards the laser (20), and the cross-sectional area of the air outlet nozzle (11) gradually expands along the air outlet direction; the air outlet end of the air outlet nozzle (11) covers the laser (20) along the horizontal direction; the top end and / or the bottom end of the laser (20) is provided with a plurality of air ducts (21); the plurality of air ducts (21) penetrate through the laser (20) along the horizontal direction; the air outlet end of the air outlet nozzle (11) is directed towards the air inlet end of the plurality of air ducts (21); the plurality of air ducts (21) comprises a first air duct (211), a second air duct (212) and a third air duct (213); the first air duct (211), the second air duct (212) and the third air duct (213) are arranged in sequence along the middle part of the laser (20) to the edge direction; the first air duct (211) gradually shrinks along the air inlet direction to the air outlet direction.

2. The laser air-cooled assembly of claim 1, wherein, the width of the first air duct (211) is greater than the width of the second air duct (212); the width of the first air duct (211) is greater than the width of the third air duct (213).

3. The laser air-cooled assembly of claim 1, wherein, the second air duct (212) is a parallel air duct; the third air duct (213) gradually expands along the air inlet direction to the air outlet direction.

4. The laser air-cooled assembly of claim 1, wherein, the cold end outlet (31) of the vortex cooler (30) is provided with a gradually expanding tube which gradually expands along the outlet direction.

5. The laser air-cooled assembly of claim 1, wherein, the air outlet of the cold end outlet (31) is connected with the air outlet nozzle (11) through an elbow pipe (12).

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